| hasso | a94434b | 2003-05-25 17:10:12 +0000 | [diff] [blame] | 1 | /* RIPng nexthop support |
| 2 | * Copyright (C) 6WIND Vincent Jardin <vincent.jardin@6wind.com> |
| 3 | * |
| 4 | * This file is part of GNU Zebra. |
| 5 | * |
| 6 | * GNU Zebra is free software; you can redistribute it and/or modify it |
| 7 | * under the terms of the GNU General Public License as published by the |
| 8 | * Free Software Foundation; either version 2, or (at your option) any |
| 9 | * later version. |
| 10 | * |
| 11 | * GNU Zebra is distributed in the hope that it will be useful, but |
| 12 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 | * General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with GNU Zebra; see the file COPYING. If not, write to the Free |
| 18 | * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA |
| 19 | * 02111-1307, USA. |
| 20 | */ |
| 21 | |
| 22 | #ifndef _ZEBRA_RIPNG_RIPNG_NEXTHOP_H |
| 23 | #define _ZEBRA_RIPNG_RIPNG_NEXTHOP_H |
| 24 | |
| 25 | #include <zebra.h> |
| 26 | #include "linklist.h" |
| 27 | #include "ripngd/ripng_route.h" |
| 28 | #include "ripngd/ripngd.h" |
| 29 | |
| 30 | struct list * ripng_rte_new(void); |
| 31 | void ripng_rte_free(struct list *ripng_rte_list); |
| 32 | void ripng_rte_add(struct list *ripng_rte_list, struct prefix_ipv6 *p, |
| 33 | struct ripng_info *rinfo, struct ripng_aggregate *aggregate); |
| 34 | void ripng_rte_send(struct list *ripng_rte_list, struct interface *ifp, |
| 35 | struct sockaddr_in6 *to); |
| 36 | |
| 37 | /*** |
| 38 | * 1 if A > B |
| 39 | * 0 if A = B |
| 40 | * -1 if A < B |
| 41 | **/ |
| 42 | static inline int |
| 43 | addr6_cmp(struct in6_addr *A, struct in6_addr *B) { |
| hasso | e3289be | 2003-05-26 14:35:50 +0000 | [diff] [blame] | 44 | |
| 45 | #ifndef s6_addr32 |
| 46 | #define s6_addr32 __u6_addr.__u6_addr32 |
| 47 | #endif /*s6_addr32*/ |
| 48 | |
| hasso | a94434b | 2003-05-25 17:10:12 +0000 | [diff] [blame] | 49 | #define a(i) A->s6_addr32[i] |
| 50 | #define b(i) B->s6_addr32[i] |
| 51 | |
| 52 | if (a(3) > b(3)) |
| 53 | return 1; |
| 54 | else if ((a(3) == b(3)) && (a(2) > b(2))) |
| 55 | return 1; |
| 56 | else if ((a(3) == b(3)) && (a(2) == b(2)) && (a(1) > b(1))) |
| 57 | return 1; |
| 58 | else if ((a(3) == b(3)) && (a(2) == b(2)) && (a(1) == b(1)) && (a(0) > b(0))) |
| 59 | return 1; |
| 60 | |
| 61 | if ((a(3) == b(3)) && (a(2) == b(2)) && (a(1) == b(1)) && (a(0) == b(0))) |
| 62 | return 0; |
| 63 | |
| 64 | return -1; |
| 65 | } |
| 66 | |
| 67 | #endif /* _ZEBRA_RIPNG_RIPNG_NEXTHOP_H */ |